FAIRFIELD (CBS SF) — A man sentenced to 40 years in federal prison for the bizarre 2015 kidnapping of a Vallejo woman has pleaded not guilty to state charges related to the case.

Matthew Muller pleaded not guilty Monday to kidnapping for ransom, two forcible rapes, first-degree robbery of an inhabited dwelling, first-degree residential burglary and false imprisonment by violence.

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Solano County Superior Court Commissioner Robert Q. Warshawsky granted Muller’s intention to represent himself, but a further was ordered on the request.

Muller is being held under $2.25 million in Solano County Jail, according to the district attorney’s office.

The nationally publicized saga involving Denise Huskins and her boyfriend Aaron Quinn included a defamation of character lawsuit they filed against the Vallejo Police Department after police said the kidnapping was a hoax. Police later apologized to the couple.

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Prosecutors said Muller drove Huskins in the trunk of his car on March 23, 2015, held her hostage for two days and made ransom demands totaling $15,000. Huskins was released near her family’s home in Huntington Beach on March 25.

Muller was arrested in South Lake Tahoe on June 8, 2015, after evidence, including a video of Muller and Huskins, was found at his mother’s home.

He entered a guilty plea to federal kidnapping charges in 2016 under a plea deal that limited his maximum sentence to 40 years.

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